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Roof biocide.. Spray or brush??

Baldmonkey

Well-known member
Messages
709
Location
Uk
Hi all

Was wondering what people's views and opinions are with regards to spraying or brushing on biocide/hypo on a roof clean.
I like how the brush produces a foam but seems to use a lot more than if applied by spray nozzle.

Spray nozzle tends to get good coverage but no foam.

Thoughts?
 
We generally spray them but it can be applied through a brush just fine the reason it foams up when brushing is due to agitation .
 
Thanks Paul, I've done both numerous times, just interested in other opinion on the matter.
I have found they produce the same result but spraying uses less bio ?
 
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